<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.img-back{
				width: 100%;
				height: 2000px;
				background-image:url("https://sqimg.qq.com/qq_product_operations/im/2015/bg1_1600.jpg");
				background-attachment: fixed;/* 背景固定 */
			}
			.back{
				display: inline-block;
				width: 200px;
				height: 200px;
				margin: 20px;
				background-color: #DDDDDD;
				background-repeat: no-repeat;
				background-position: right; bottom;
			}
		</style>
	</head>
	<body>
		<div class="img-back">
		<div class="back">这里有张背景图</div>
		<div class="back">这里有张背景图</div>
		<div class="back">这里有张背景图</div>
		<div class="back">这里有张背景图</div>
		<div class="back">这里有张背景图</div>
		</div>
	</body>
</html>
